Movements from a lot to another lot
- Last UpdatedMar 11, 2025
- 2 minute read
On material movements from one lot to another lot, AVEVA™ Production Management checks for an existing SampleIdentifier in these scenarios:
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If a SampleIdentifier exists at the source lot, the destination lot inherits the SampleIdentifier.
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If no SampleIdentifier exists at the source lot, but the movement between the source and destination lots contains a SampleIdentifier, then the destination lot inherits the SampleIdentifier on the movement.
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If a SampleIdentifier exists at the destination lot, a warning message displays in the Event log.
Merging two source lots into a destination lot
When two source lots are merged into one destination lot, AVEVA™ Production Management handles the SampleIdentifier in one of these following ways:
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If the same SampleIdentifier exists at each source lot, the destination lot inherits the SampleIdentifier.
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If a different SampleIdentifier exists at each source lot, the destination lot does not inherit a SampleIdentifier and a warning message is displayed in the event log.
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If a different SampleIdentifier exists at each source lot, and the movements between the source and destination lots contains the same new SampleIdentifier, then the destination lot inherits the SampleIdentifier on the movements.
Note: When a movement occurs between equipment, and those equipment do not share at least one reporting point, then the SampleIdentifier is not inherited. For example, when a movement occurs from Work Center 1 with the reporting point MQRP1, to Work Center 2 with the reporting point MQRP2.

Sample Identifier inheritance with two different identifiers into same lot
If one lot receives multiple movements with unmatching identifiers, the lot will not retain a value for the Sample Identifier.
Example: SampleIdentifier inheritance with different identifier into same lot
In this diagram, Movement 1 moves material into Lot 1 and Lot 2 with a Sample Identifier value SID1.
Movement 2 moves material into Lot 2 and Lot 3 with a Sample Identifier value SID2.
The result is that Lot 2 has no value for Sample Identifier due to the fact, that there were two non-matching values for this lot. Therefore, no value is retained.

If you have the Verbose property in AVEVA™ Production Management enabled, a message will write to the Event log:
Sample Identifier '{SampleIdentifier}' is being cleared at the merging lot '{DestinationLot}' because the sample identifiers are not identical.